The T4 has nine available polar patterns, selectable from the front panel of the external power supply unit. Rather than limiting the user to only the three most common patterns (omnidirectional, cardioid, and figure-8 patterns), the T4 has three gradient stages between each of those positions allowing the artist and recording engineer a wider tone pallet.

For example, in vocal applications where an omnidirectional pattern isn't quite 'fat' enough, but cardioid is too narrow, you now have three additional steps to find the right subtle mix between those two standard patterns. With the ART T4 you have the rare opportunity to use the proximity effect of a cardioid, yet still open up the microphone to hear some of the natural early reflections of a good sounding live room.